This is a resistor color band tutorial video. This video shows how to calculate the value of resistor using color bands on the resistor. The Resistor has four color bands, the firs three bands show how many ohm the resistor can resisting, and the last bands is the tolerance. The first band is the first digit in how many ohm it resist, second band is the second digit in how many ohm it resist. The third band is called multiplier band. The fourth band is always the tolerance. Here is the video: